Sewer construction



G. F. EGAN Oct. 14, 1941.

sEwER CONSTRUCTION Filed Sept. 9, 1940 2 Sheets-Sheet l l-l VI! I lll 1 ATTORNEY.

Oct. 14, 1941 N 2,259,128

SEWER CONS TRUCTION Filed Sept. 9, 1940 2 Sheets-Sheet 2 INVENTOR.

WW ATTORNFV.

Patented Oct. 14,

UNITED l STATES PATENT OFFICE SEWER CONSTRUCTION George Egan, Jersey City, NJ. Application September 9, 1940, Serial No. 355,946

' 4 Claims. (c1. i82-26) toilets, wash basins, wash tubs, sinks, bath tubs,

The present invention relates to sewer 'construction.

A sewer system ordinarily comprises piping, commonly called a main sewer, constructed or laid beneath the surface of a highway, and such highway generally includes a vehicular roadway, sidewalks along which foot passengers may travel, curbs between the vehicular roadway and the sidewalks, and gutters along the curbs. Ordinarily the surface of a vehicular roadway is fashioned with a crown at or near its center, and from the crown the surface of the vehicular road- Way slopes towards the gutters. Sidewalks are ordinarily constructed or laid with a pitchtowards the gutters. Rain water and other materials from sidewalks and from the surface of vehicular roadways may be swept or otherwise discharged into gutters and the discharge into gutters may include paper, tree leaves, branches of trees, sticks, tin cans, bottles, decayed fruits and vegetables, animal manure and other materials.

In proximity to gutters are catch basins so located and constructed as to be adapted to receive contents of gutters. Liquids and other'materials from roadways and sidewalks may enter catch basins directly instead of being first discharged into a gutter. A catch basin generally has a removable cover. While access to a catch basin may be obtained to clean or repair a catch basin by removing the cover thereof it not infrequently happens that the cover of the catch basin is removed without authorization and the catch basin used as a place for the deposit of dead dogs, rodents, decayed fruits and vegetables, and other materials. Conduits lead from catc basins to the main sewer.

Conduits also lead to the main sewer from buildings on either side of the main sewer. These last mentioned conduits are intended for the discharge into the main sewer of liquids, excrement and other materials from toilets, wash basins,'

wash tubs, sinks, bath tubs, and other equipment of buildings intended to be served by the main sewer. Toilets, wash basins, wash tubs, sinks,

bath tubs, and other paraphernaliamay'be installed in more than one part of a building, and the waste piping of the building may be so arranged that waste from toilets, wash basins, wash tubs, sinks, bath tubs, and other paraphernalia from more than one part'of the building may discharge into a conduit leading from the building to the main sewer, or the wastepiping may be so arranged as to serve as a conduit leading to the sewer. In either event, if discharge from or other equipment of the building to the main sewer beinterfered with waste from toilets, wash basins, wash tubs, sinks, bath tubs, or other paraphernalia in one part of the building may discharge into toilets, wash basins, wash tubs, sinks, bath tubs, or other paraphernalia in another part of the building and out onto the floor of the building.

-A conduit leading from a catch basin may become choked if materials from such catch basin cannot pass through such conduit into the sewer, and a conduit leading from a building may become choked if materials from the building cannot pass through the last mentioned conduit into the sewer. Obviously whatever liquids and materials may be in a catch basin when the conduit leading from the catch basin to the sewer is choked, may not discharge into, the sewer and entrance of liquids and other materials into a catch basin from gutters, etc., while the conduit leading from the catch basin to the sewer is choked may result in the flooding of the highway. If the exit of waste from toilets, wash basinsywash tubs, sinks, bath tubs, or other paraphernalia, to the sewer be choked, such waste may seek exit wherever it can find an opening in .the building and this may result in the flooding of the cellar or basement of the building,

'the sewer or to excrement or other materials with which the interior of a sewer is coated, and

adherence of materials to the bottom and sides of a sewer or to materials with which the interior of a sewer is coated reduces the diameter of a sewer. If'sewage entering a sewer cannot flow towards the body of water into which it is intended that sewage shall be discharged and be there discharged into such body of water the sewer itself may be choked and the conduits leading to the sewer from catch basins andbuildings may be unable to freely discharge into the sewer. And if contents of the body of water into which it is intended that sewage shall be discharged enter the sewer not only may the flow "of sewage towards the discharge end of the sewer and the discharge of sewage from such discharge end he interfered with but contents of the sewer and of the body of water into which it is intended that sewage may discharge may ascend into the conduits intended to empty into the sewer and out into catch basins and buildings with which such conduits are connected. The results of the flow into a sewer of water from the body of water into which it is intended that sewage shall discharge do not appear to require further elaboration.

Ordinarily, a main sewer is constructed or laid with an inclination'towards a body of water into which body of water liquids and materials car-. ried by liquids to the discharge end of a sewer,- may empty. sewer should be above the high water line of such body of water but it frequently happens that a locality intended to be served-by a main sewer is so low that it is impracticable to so lo;- cate the discharge end of a main sewer that said discharge end shall at all tiinesbe above th 'hi h w t line" bf w re??? 9 W ter it which it is intended that the main sewer shall ernpty. When the water into which it is'intended that a sewer shall discharge rises suiiicientIy no only is the discharge or liquids and mat rials carried by liquids from the Inain sewer into such body of 'water interfered with, but the body of water' may enter the discharge end ofthe sewer and into conduits leading to the sewer v from buildings .and catch "basins intended to be 4 served 'bythe' sewer;

Anobject of the pre nt invention is to provide' a sewer construction comprising means whereby asewer will atall tiine's'be free to discharge'contents thereof into'the body oi water intdwhich it is intended that the sewer shall ern'pty'and at the same time'prevent such body of water from entering the sewer.

" Another object of the inven ion is to provide a, .;0

sewer construction wherein inovement towards the discharge end of a'sewer of liquids and'ir'ia'terials carried by liquids will be accelerate ""The'invention also 'contemplates'provision of body of water into which it tiis intended that "ovab'le contents of a sewer may discharge,

which valve will automatically prevent flowiin'to a sewer'oi contents e t ie body frwiite into 'which it is intended that'the sewer shall e pty. 5Q

' 'With foregoing'and other objects in vifeyvthe present invention will be more'fullvde ribed hereinafter andwill be 'inore' iarticularly n ed out in the claims appendedhlereto'. In the drawings, wherein like symbols refer i i mse s le s ncite-ii i se er l viewsi s Fig. 1 shows parts at a main sewer embody ng invention in 'sida -elevation and withthedi'si i a we e n stre se 1111a 00 body" of water.

'Fig. 5. is a fragmentary Per pective .view r 70 the d s harge sa i Weiss-nt er i it Tr e- I i is a id i w wit er- Pen s rit nw'ins teqt e er ef assess is? 9, e

sewer. 7 5

Ideally, the discharge end of a 15' ssgwer downw an; and asenteiing"through thelelon- Fig. 7 is a partial side and sectional view of a lower branch showing a modified form of valve construction and band.

Fig. 8 is an end view of the construction illustrated in Fig. '7.

Fig. 9 is a cross section taken on the line 9-9 of Fig, '7;

Fig. 10 is a front view of a modified form of valve; Fig. 10a is a cross section of the form of valve illustrated in Fig. 1.0; Big. 11 is a front view r another modified form of valve; and Fig. 11a is a cross section of the form of valve shown in Fig. 11.

' Referring to the drawings and for the present more particularly to Figures 1 to 5, inclusive, designates part of a sewer the discharge end whereo'f'being shown as provided with a lower branch @l and an upper branch 62. The branch BI is shown as having an inclination downwardly towards the body of water indicated to the left in Fig. 1 greater than the inclination of the piping 60 towards said body of water. When the pressure of the contents of the branch 51' against theyalve hereinafter referred to is greater than the weight'of th evalv'e and such pressure as is exerted to" hold said valve closed contents of the branch 6| m y be discharged into the body of water into which it intended that sewage may be discharged. "In Fig. 1 said body of water is shown a'thigh water line and the valve at the discharge end of the branch 5 i is shown as completely-immersed in said body of water, while t'liedischarge end 64 of the upper branch .62 is sliown'as terminating above the hig li'water line of saidbody of Water and as 'dischargingdownwardly and forwardlybeyondthe valve at the discharge end of the branch fiif'The branch G2 ,is" showi1 as joined to the pipe 60 at 65; located ba'cli'fof the point 6,3".where the 'more precipitate the ran 62- a valve'lo'cat'ed below'the high water 'line of a TFI'l edis charge end of branch BI is shown as e i i diii 'pj ond'the 'bank'BB oi the body or wat'erinto ich it' is intended that sewage shall be discharged, and this projecting 'end of the fiif is 'snown 38 provided with a circum- "fei'entially elongated slot 68 located near the 'dischaise end or the bieiicnisi e d s ha end r the rancn'ti s'sii w i as so arranged and "disposed that the upper portion thereof will lie inwardly er the ieweirciitiori' and peirriitthe valve to rest against the discharge end of the bifanch 'EIL' In'FigI 4 the valve 01 is shown. as

provided With a'tongllemad integral With'the valve 61 and a portion it! of the 'tonguetfl is shc'jwdas eirtendirigradially outward from 'the valve 51' to'peririitth valv to rest against the dischargeend of "the branch .6]. The tongue "59 ifs s'h wn'.a'sturned over'frorn the upper e e of gated. slot '58; and'tiie tail piece of the tenses" is filed downwardly end'r 'arwardiy eweriei e of the part 12. "ALhirigd d whereby the valve 511 rock as en'di i the branch ,1; dtli tail p t i iiiw 'll Pr vent/ h v lve rqm di enasas. .51 $91? from instigate 1 In Figures 1, 2 and 3 I have shown a valve concavo-convex in shape with the convexity presented to the discharge end of the branch 6|. In Fig. 1 I have shown the valve as fitting snugly in the discharge end of the branch 6|. When the valve is in the position shown in Fig. l the weight of the valve will aid in holding the valve closed and the convexity of the valve will aid the body of water into which it is intended that sewage shall be discharged in holding the valve closed.

The operation of the form of invention shown in Figures 1, 2 and 3 is as follows: The discharge end of the branch 6| will preferably be disposed at as high a point as practicable above the low water mark of the body of water into which it is intended that sewage may discharge and the discharge end 64 of the branch 62 will be so disposed and arranged that the end 64 will be at all times above the high water line of such body of water. When pressure of sewage in the branch 6| against the valve 61 is greater than the pressure of the weight of that valve against the discharge end of the branch 6|, sewage may empty from the discharge end of the branch 6! provided the body of water into which it is intended that sewage shall discharge does not press against the valve 61. When said body of water presses against the valve 61, the valve 6'! will be held closed and there will be no counter or back flow from said body of water into the sewer. On the other hand sewage may freely discharge throu h the branch 62.

The arrangement illustrated in Fig. 6 is substantially similar to the arrangement shown in Figures 1 to inclusive. In Fig. 6, l4 designates part of a sewer, 15 a lower branch, 16 an upper branch, and 11 the place at which the precipitate inclination of the branch 15 commences. In this form of construction, the branch 15 is shown as connected at 18 with the branch 15 outwardly of the point 11. In Fig. 6 the valve at the discharge end of the branch 15 is of the form illustrated in Fig. 11. The branches l5 and 16 may be made together. The general construction, functions and operations of device shown in Fig. 6 are substantially the same as those of the construction illustrated in Figures 1 to 5, inclusive.

In Figures 7, 8 and 9, the branch BI is shown as provided with a band 19 secured at the discharge end of the branch 6| as by fastenings 80 and as having a flange 8| bent over the discharge end of the branch 6| for receiving the edge portion of the valve 61. The band '19 is shown as provided with an inturned lip 82 at its upper portion bent through a slot 68. The band 19, its flange 8| and lip 82 provide wear surfaces for the valve 61 to rock on. Furthermore, the band 19 reenforces and strengthens the discharge end of the branch 6!. This form of construction is applicable for use where the branch BI is of a material other than metal. The band 19 may be removed and replaced whenever desired.

In Fig. 10 there is shown a valve I42 of concave-convex cross-section and with double hanging eyes 143 and I 44 and in Fig. 11 there is shown a concave-convex valve with a single eye I 48.

All these forms of valve operate to open and close the discharge end of the branch 6| in the same manner as is described in connection with Figures 1 to 6 inclusive.

It is obvious that various changes and modifications may be made in the details of construction and design of the above specifically described embodiments of my invention without departing from the spirit thereof.

I claim:

1. A sewer construction comprising sewer piping extending at an inclination towards a body of Water, an end portion terminating below the high waterline of said body of water, a valve mounted at the terminal of said end portion, said valve being of such weight and of such shape and so mounted that it will close said terminal except when contents of the sewer force said valve open, and the terminal of said end portion being of such shape that the valve will rest thereagainst and close said end portion except when said valve is held open by pressure from within said sewer, and another end portion having a terminal located above the high water line of said body of water.

2. A sewer conlstruction comprising sewer piping extending at an inclination towards a body of water, an end portion terminating below the high water line of said body of water, a concave-convex valve mounted at the terminal of said end portion and adapted to hold said terminal of said end portion closed except when pressure from within the sewer holds said valve open, the convex portion of the valve being adapted to fit into the terminal of said discharge end and the terminal of said discharge end being adapted to receive the convex portion of the valve therein, and another end portion having a terminal located above the high water line of said body of water.

3. A sewer construction comprising sewer piping extending at an inclination to a body of water, an end portion having a greater inclination downwardly towards said body of water than the inclination of the main body of a sewer piping towards said body of water, said end portion having a valve mounted at the terminal thereof, said valve being of such weight and of such shape and so mounted that it will close said terminal except when contents of the sewer holds said valve open, and the terminal of said end portion being of such shape that the valve will rest thereagainst except when said valve is held open by pressure from within said sewer, and another end portion having a terminal located above the high water line of said body of water.

4. A sewer construction comprising sewer piping extending at an inclination towards a body of water, an end portion terminating below the high water line of said body of water, a valve mounted at the terminal of said end portion and adapted to rest against said terminal except when contents of the sewer holds said valve open, said valve having a tongue integral therewith and said end portion having a perforation in the circumference thereof adapted to receive said tongue, the end of said tongue which enters said perforation being so turned within said end portion that said valv is adapted to rock on said end portion, and another end portion having a terminal located above the high Water line of said body of water.

GEORGE F. EGAN. 

